CN103763540A - Three-dimensional display method and device - Google Patents

Abstract

The invention provides a three-dimensional display method which includes the steps that the interference value of a display unit, under covering of a light splitting device, for at least a pair of images with parallax is obtained; according to the interference value, the display unit is adjusted; the adjusted display unit is used for displaying the pair of images with parallax. The invention further provides a three-dimensional display device. According to the technical scheme, the crosstalk phenomenon can be effectively reduced in the process of three-dimensional display, and the three-dimensional display effect is optimized.

Description

Stereo display method and 3 d display device

Technical field

The present invention relates to stereo display technique field, in particular to a kind of stereo display method and a kind of 3 d display device.

Background technology

In 3D procedure for displaying, need to provide respectively left-eye image and eye image to beholder's left eye and right eye, and seen a certain amount of right figure content because a variety of causes causes beholder's left eye, right eye has been seen a certain amount of left eye content, will cause occurring " crosstalking " having occurred ghost phenomena (or being referred to as ghost) in 3D scene.The existence of crosstalking, has greatly affected 3D display quality.

Therefore, how to reduce crosstalking of existing in 3D procedure for displaying, become technical problem urgently to be resolved hurrily at present.

Summary of the invention

The present invention is intended at least solve one of technical problem existing in prior art or correlation technique.

For this reason, one object of the present invention is to have proposed a kind of stereo display method.

Another object of the present invention is to have proposed a kind of 3 d display device.

For achieving the above object, embodiment according to a first aspect of the invention, has proposed a kind of stereo display method, comprising: the interference value of the display unit that obtains at least one pair of image with parallax under light-dividing device covers; According to described interference value, described display unit is adjusted; By the described display unit after described adjustment, the described a pair of image with parallax is shown.

In this technical scheme, interference value comprises having the total amount of crosstalking that a pair of image of parallax produces mutually.By display unit being adjusted based on interference value, make it possible to, by the display unit after adjusting, reduce the numerical value of interference value, reduce the total amount of crosstalking that the corresponding a pair of image with parallax produces mutually, thereby optimize stereo display effect.

In addition, stereo display method according to the above embodiment of the present invention, can also have following additional technical characterictic:

According to one embodiment of present invention, preferably, obtaining described interference value specifically comprises: according to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

In this technical scheme, because display area ratio is associated with affected degree, such as display area ratio is when larger, the impact being subject to may be larger.Thereby by obtaining display area ratio, just can determine corresponding influence degree, thereby based on this influence degree, the optimum show value of the pixel image while being adjusted at actual demonstration on display unit, can reduce the interference volume to left-eye view and right-eye view, to weaken cross talk effect.

And by obtain display area ratio corresponding to left-eye view and right-eye view simultaneously, make it possible to the impact of simultaneously recognizing that left-eye view and right-eye view are subject to, and while adjusting optimum show value based on this impact, can take into account the situation of left-eye view and right-eye view simultaneously, avoid inconsistent and cause the viewing effect of images of left and right eyes inharmonious to the adjustment amount of left-eye view and right-eye view.

Simultaneously, because display unit is finally merely able to be shown as certain fixing numerical value, thereby determine interference value with the difference of the show value of left-eye view, right-eye view respectively according to the show value of display unit, the impact that the actual displayed value that can take into account display unit causes respectively left-eye view and right-eye view, thus make final display effect balanced and reasonable more.

According to one embodiment of present invention, preferably, obtaining described display area ratio specifically comprises: according to the structure attribute of 3 d display device under described display unit and/or beholder's positional information, determine the described a pair of image viewing area corresponding to difference on described display unit with parallax; And calculate the described a pair of image with parallax and on described display unit, distinguish corresponding viewing area shared ratio in whole viewing areas of described display unit.

In this technical scheme, 3 d display device is after production completes, and its structure attribute just can be determined and be fixed up, thereby can, according to the practical structures characteristic of 3 d display device, determine display area ratio.Simultaneously, when adopting the Display Technique of people's ocular pursuit, for the difference of beholder present position information, also can cause left-eye image and eye image corresponding viewing area in display unit to change, thereby also can obtain this positional information, to realize the amount of crosstalk reducing under tracing of human eye displayed scene.

Wherein, for not considering in the situation of people's ocular pursuit, obviously can only according to the structure attribute of 3 d display device, calculate viewing area and corresponding display area ratio; And for determining in the situation of parameters of structure attribute, the positional information in the time of obviously also can be only according to people's ocular pursuit, determines corresponding viewing area and display area ratio; And by simultaneously to the obtaining of structure attribute and positional information, can take into account the application of hardware case and human eye tracer technique, thereby realize the optimization process effect reducing crosstalking.

Preferably, described structure attribute comprise following at least one or a combination set of: the parallax of displaying contents and the size of described display unit in the inclination angle between the display floater in described 3 d display device and described light-dividing device, the aperture opening ratio of described light-dividing device, described display unit positional information, the described display unit on described light-dividing device.

In this technical scheme, if not adopting, light-dividing device and display floater tilt to install, inclination angle can be 0 ° and without consideration, but for adopting inclination mode install and exist in the situation of error, can consider the existence at inclination angle.Meanwhile, if adopt lenticulation, can think that it is equivalent to aperture opening ratio is 100% slit grating.

Certainly, those skilled in the art should understand that: can select any one or more in said structure attribute according to actual conditions, also can use other NM structure attributes; When selecting the structure attribute of more type, contribute to obtain computation structure more accurately, and when selecting the structure attribute of less type, contribute to reduce amount of calculation.

According to one embodiment of present invention, preferably, the described process of described display unit being adjusted according to described interference value comprises: in the described a pair of image with parallax, determine the first amount of crosstalk that right-eye view causes left-eye view shared the first weight in described left-eye view, and described left-eye view the second amount of crosstalk that described right-eye view is caused shared second weight in described right-eye view; According to described the first weight, described the second weight, the show value of described left-eye view and the show value of described right-eye view, generate the calculating formula of described interference value about the show value of described display unit; When the calculating formula entirety minimum of described interference value and the optimum show value of described display unit are between the show value of described left-eye view and the show value of described right-eye view, obtain the optimum show value of described display unit.

In this technical scheme, when generating the calculating formula of interference value, by weighted value is set, in fact embodied the size of the impact that left-eye view and right-eye view be subject to, thereby while calculating optimum show value accordingly, can reflect the adjustment of the amount of crosstalk that left-eye view and right-eye view are subject to, alleviate crosstalk phenomenon.

Preferably, display area ratio and the first weight that left-eye view is corresponding are proportionate, and display area ratio and the second weight that right-eye view is corresponding are proportionate.In this technical scheme, when in the larger situation of display area ratio, the impact of being crosstalked is more serious, thereby by display area ratio and weight are proportionate, can realize larger adjustment amount to the larger side of weight, make, when alleviating crosstalk phenomenon, the display effect of left-eye view and right-eye view to be carried out to balance.

As a kind of comparatively concrete execution mode, by display area ratio corresponding described left-eye view, as described the first weight; And by display area ratio corresponding described right-eye view, as described the second weight.

In this technical scheme, can be simply using display area ratio as corresponding weight; Or, it will be understood by those skilled in the art that by adopting other parameters that is positively correlated with display area ratio, obviously also can realize equally the adjustment of crosstalking to left-eye view and right-eye view.

According to one embodiment of present invention, preferably, also comprise: according to the difference of described the first amount of crosstalk and described the second amount of crosstalk, the calculating formula of described interference value is adjusted, with the first amount of crosstalk described in balance and described the second amount of crosstalk; And according to the calculating formula of the interference value after adjusting, obtain the optimum show value of described display unit.

In this technical scheme, not only consider that interference value is as far as possible little, simultaneously also by the adjustment of the calculating formula to interference value, include the difference of the first amount of crosstalk and the second amount of crosstalk in consideration, make using optimum show value after adjusting while showing, the mutual balance of amount of crosstalk corresponding to left-eye view and right-eye view, more reasonable, contributes to the mutual coordination between left-eye view and right-eye view, thereby promotes viewing experience.

Preferably, the process of described interference value being adjusted comprises: in the calculating formula of described interference value, add the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk.

In this technical scheme, by adding balance control parameter, included the consideration of the difference to the first amount of crosstalk and the second amount of crosstalk in, thereby contributed to balance left-eye view and amount of crosstalk corresponding to right-eye view, make the mutual coordination between left-eye view and right-eye view, thereby promote viewing experience.

According to the embodiment of second aspect present invention, a kind of 3 d display device has been proposed, comprising: acquiring unit, at least one pair of have parallax image display unit light-dividing device cover under interference value; Adjustment unit, for according to described interference value, described display unit being adjusted, shows the described a pair of image with parallax with the described display unit after described adjustment.

In this technical scheme, interference value comprises having the total amount of crosstalking that a pair of image of parallax produces mutually.By display unit being adjusted based on interference value, make it possible to, by the display unit after adjusting, reduce the numerical value of interference value, reduce the total amount of crosstalking that the corresponding a pair of image with parallax produces mutually, thereby optimize stereo display effect.

In addition, 3 d display device according to the above embodiment of the present invention, can also have following additional technical characterictic:

According to one embodiment of present invention, preferably, described acquiring unit comprises: ratio acquisition module, for obtaining the described a pair of image display area ratio of correspondence on described display unit respectively with parallax; Difference acquisition module, for the show value that obtains described display unit respectively with the difference of the show value of the described a pair of image with parallax; Interference value determination module, for according to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

In this technical scheme, because display area ratio is associated with affected degree, such as display area ratio is when larger, the impact being subject to may be larger.Thereby by obtaining display area ratio, just can determine corresponding influence degree, thereby based on this influence degree, the optimum show value of the pixel image while being adjusted at actual demonstration on display unit, can reduce the interference volume to left-eye view and right-eye view, to alleviate the generation of crosstalk phenomenon.

And by obtain display area ratio corresponding to left-eye view and right-eye view simultaneously, make it possible to the impact of simultaneously recognizing that left-eye view and right-eye view are subject to, and while adjusting optimum show value based on this impact, can take into account the situation of left-eye view and right-eye view simultaneously, avoid inconsistent and cause the viewing effect of images of left and right eyes inharmonious to the adjustment amount of left-eye view and right-eye view.

Simultaneously, because display unit is finally merely able to be shown as certain fixing numerical value, thereby determine interference value with the difference of the show value of left-eye view, right-eye view respectively according to the show value of display unit, the impact that the actual displayed value that can take into account display unit causes respectively left-eye view and right-eye view, thus make final display effect balanced and reasonable more.

According to one embodiment of present invention, preferably, described ratio acquisition module comprises: submodule is determined in region, for according to the structure attribute of described 3 d display device and/or beholder's positional information, determine the described a pair of image viewing area corresponding to difference on described display unit with parallax; Ratio calculating sub module is distinguished corresponding viewing area in the shared ratio in whole viewing areas of described display unit for calculating the described a pair of image with parallax on described display unit.

In this technical scheme, 3 d display device is after production completes, and its structure attribute just can be determined and be fixed up, thereby can, according to the practical structures characteristic of 3 d display device, determine display area ratio.Simultaneously, when adopting the Display Technique of people's ocular pursuit, for the difference of beholder present position information, also can cause left-eye image and eye image corresponding viewing area in display unit to change, thereby also can obtain this positional information, to realize the amount of crosstalk reducing under tracing of human eye displayed scene.

Wherein, for not considering in the situation of people's ocular pursuit, obviously can only according to the structure attribute of 3 d display device, calculate viewing area and corresponding display area ratio; And for determining in the situation of parameters of structure attribute, the positional information in the time of obviously also can be only according to people's ocular pursuit, determines corresponding viewing area and display area ratio; And by simultaneously to the obtaining of structure attribute and positional information, can take into account the application of hardware case and human eye tracer technique, thereby realize the optimization process effect reducing crosstalking.

Preferably, described structure attribute comprise following at least one or a combination set of: the parallax of displaying contents and the size of described display unit in the inclination angle between the display floater in described 3 d display device and described light-dividing device, the aperture opening ratio of described light-dividing device, described display unit positional information, the described display unit on described light-dividing device.

In this technical scheme, if not adopting, light-dividing device and display floater tilt to install, inclination angle can be 0 ° and without consideration, but for adopting inclination mode install and exist in the situation of error, can consider the existence at inclination angle.Meanwhile, if adopt lenticulation, can think that it is equivalent to aperture opening ratio is 100% slit grating.

Certainly, those skilled in the art should understand that: can select any one or more in said structure attribute according to actual conditions, also can use other NM structure attributes; When selecting the structure attribute of more type, contribute to obtain computation structure more accurately, and when selecting the structure attribute of less type, contribute to reduce amount of calculation.

According to one embodiment of present invention, preferably, described adjustment unit comprises: weight determination module, be used at the described a pair of image with parallax, determine the first amount of crosstalk that right-eye view causes left-eye view shared the first weight in described left-eye view, and described left-eye view the second amount of crosstalk that described right-eye view is caused shared second weight in described right-eye view; Calculating formula generation module, for generating the calculating formula of described interference value about the show value of described display unit according to described the first weight, described the second weight, the show value of described left-eye view and the show value of described right-eye view; Numerical value determination module, when the optimum show value of the calculating formula entirety minimum at described interference value and described display unit is between the show value of described left-eye view and the show value of described right-eye view, obtains the optimum show value of described display unit.

In this technical scheme, when generating the calculating formula of interference value, by weighted value is set, in fact embodied the size of the impact that left-eye view and right-eye view be subject to, thereby while calculating optimum show value accordingly, can reflect the adjustment of the amount of crosstalk that left-eye view and right-eye view are subject to, alleviate crosstalk phenomenon.

Preferably, the display area ratio that described left-eye view is corresponding and described the first weight are proportionate, and display area ratio and the second weight that right-eye view is corresponding are proportionate.In this technical scheme, when in the larger situation of display area ratio, the impact of being crosstalked is more serious, thereby by display area ratio and weight are proportionate, can realize larger adjustment amount to the larger side of weight, make, when alleviating crosstalk phenomenon, the display effect of left-eye view and right-eye view to be carried out to balance.

As a kind of comparatively concrete execution mode, described weight determination module is display area ratio corresponding described left-eye view, as described the first weight, and by display area ratio corresponding described right-eye view, as described the second weight.

In this technical scheme, can be simply using display area ratio as corresponding weight; Or, it will be understood by those skilled in the art that by adopting other parameters that is positively correlated with display area ratio, obviously also can realize equally the adjustment of crosstalking to left-eye view and right-eye view.

According to one embodiment of present invention, preferably, also comprise: balancing unit, for according to the difference of described the first amount of crosstalk and described the second amount of crosstalk, the calculating formula of described interference value is adjusted, with the first amount of crosstalk described in balance and described the second amount of crosstalk; Wherein, described numerical value determination module, according to the calculating formula of the interference value after adjusting, obtains the optimum show value of described display unit.

In this technical scheme, not only consider that interference value is as far as possible little, simultaneously also by the adjustment of the calculating formula to interference value, include the difference of the first amount of crosstalk and the second amount of crosstalk in consideration, make using optimum show value after adjusting while showing, the mutual balance of amount of crosstalk corresponding to left-eye view and right-eye view, more reasonable, contributes to the mutual coordination between left-eye view and right-eye view, thereby promotes viewing experience.

Preferably, described balancing unit comprises: parameter is added module, for the calculating formula at described interference value, adds the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk.

In this technical scheme, by adding balance control parameter, included the consideration of the difference to the first amount of crosstalk and the second amount of crosstalk in, thereby contributed to balance left-eye view and amount of crosstalk corresponding to right-eye view, make the mutual coordination between left-eye view and right-eye view, thereby promote viewing experience.

By above technical scheme, can effectively weaken the cross talk effect in stereo display process, optimize stereo display effect.

Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:

Fig. 1 and Fig. 2 show the schematic diagram of crosstalking and forming of 3 d display device;

Fig. 3 shows the schematic flow diagram of stereo display method according to an embodiment of the invention;

Fig. 4 shows the schematic diagram of display unit according to an embodiment of the invention;

The schematic diagram of when Fig. 5 shows beholder according to an embodiment of the invention position and moves horizontally, row figure order being adjusted;

The schematic diagram of when Fig. 6 shows beholder according to an embodiment of the invention position and vertically moves, the row figure cycle being adjusted;

Fig. 7 shows the functional image schematic diagram of the total amount of crosstalking according to an embodiment of the invention;

Fig. 8 shows the schematic block diagram of 3 d display device according to an embodiment of the invention.

Embodiment

In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.

A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not limited to the restriction of following public specific embodiment.

Especially, in bore hole 3D procedure for displaying, the generation of crosstalking mainly contains two reasons, therefore therefore comprise that light-dividing device is crosstalked and display unit is crosstalked.For convenience of explanation here to adopt grating to carry out light splitting as light-dividing device, to be display unit (also can adopt as other display unit such as projection cloths) describe for example employing display floater.

As shown in Figure 1, in figure, adopting common lenticulation is light-dividing device 100, consider the material horizontal that light-dividing device 100 adopts, and fabrication error, left figure information in display unit 200 and right figure information are difficult to be carried out thoroughly light splitting completely by light-dividing device 100, the left figure information showing in display unit 200 are projected in left eye completely, and right figure information projects in right eye completely, now just inevitably crosstalk, and this part is crosstalked and is " therefore light-dividing device is crosstalked ".Take right eye as example, in the sight line region 102 in Fig. 1, there is a large amount of light corresponding to left-eye view, there is crosstalk phenomenon; Only there is the light in sight line region 104 just relatively pure.

In addition, because the situation of some horizontal displacements or inclination inevitably will occur in laminating process for light-dividing device 100 and display unit 200, in actual conditions, based on reducing the considerations such as moire fringes, people have a mind to light-dividing device 100 and display unit 200 relative tilts to place.As shown in Figure 2, this figure is that employing slit grating is light-dividing device 100, and slit grating is projected to the schematic diagram on display floater (being display unit 200) by the mode of watching of human eye.The level that in figure, broad-brush horizontal width w the is slit width that is in the light, the row figure period p itch that the level interval between every two thick lines centers is display floater, and the value of δ=(1-w)/pitch is light transmittance or the aperture opening ratio of slit grating.The inclination angle of note slit grating and display floater is θ, on display floater, will there are some display units, as the pixel P1 in Fig. 2 and P2 etc., a part for these display units is left figure information area (left eye sees through the panel zone that grating is seen), a part is in right figure information area (display panel areas that right eye is seen), also may some region by slit grating, be blocked and simultaneously not at the right figure information area of left figure.It is pointed out that when grating adopts lenticulation, can in Fig. 2, directly aperture opening ratio percentage δ be defined as to 100%, i.e. thick lines slit width w=0, can be approximately and adopt lenticulation is that light splitting fills 100 schematic diagram.

And in practical situation, make as a whole display unit P1 or P2 and finally can only entirety be shown as fixing color value or a brightness value, no matter how P1 or P2 are shown, as long as left and right figure information (being specifically color value, brightness value etc.) there are differences at this display unit, just inevitably produce a part and crosstalk, be " therefore display unit is crosstalked ".

In fact, even display unit 200 placement vertical with light-dividing device 100, because there is more or less the situation of relative dislocation during laminating, also can there is, be similar to the display unit of P1, P2 the generation cycle, comprise the pixel value of left graph region and right graph region simultaneously.

Fig. 3 shows the schematic flow diagram of stereo display method according to an embodiment of the invention.

As shown in Figure 3, stereo display method according to an embodiment of the invention, comprising:

Step 302, the interference value of the display unit that obtains at least one pair of image with parallax under light-dividing device covers;

Step 304, adjusts described display unit according to described interference value;

Step 306, is shown the described a pair of image with parallax by the described display unit after described adjustment.

In this technical scheme, interference value comprises having the total amount of crosstalking that a pair of image of parallax produces mutually.By display unit being adjusted based on interference value, make it possible to, by the display unit after adjusting, reduce the numerical value of interference value, reduce the total amount of crosstalking that the corresponding a pair of image with parallax produces mutually, thereby optimize stereo display effect.

According to one embodiment of present invention, preferably, obtaining described interference value specifically comprises: according to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

In this technical scheme, because display area ratio is associated with affected degree, such as display area ratio is when larger, the impact being subject to may be larger.Thereby by obtaining display area ratio, just can determine corresponding influence degree, thereby based on this influence degree, the optimum show value of the pixel image while being adjusted at actual demonstration on display unit, can reduce the interference volume to left-eye view and right-eye view, to weaken cross talk effect.

And by obtain display area ratio corresponding to left-eye view and right-eye view simultaneously, the interference value that acquisition affects stereo display effect makes it possible to the impact of simultaneously recognizing that left-eye view and right-eye view are subject to, and based on this interference value, affect to adjust and show that image is while being optimum show value, can take into account the situation of left-eye view and right-eye view simultaneously, thereby avoid inconsistent and cause the viewing effect of images of left and right eyes inharmonious to the adjustment amount of left-eye view and right-eye view, and can effectively weaken cross talk effects.

Particularly, Fig. 4 shows the schematic diagram of display unit according to an embodiment of the invention.

Shown in Fig. 2 and Fig. 4, Fig. 4 (a) shows the schematic diagram corresponding to the display unit P1 in Fig. 2, and Fig. 4 (b) shows the schematic diagram corresponding to the display unit P2 in Fig. 2.

Display unit refers to makes as a whole display structure unit, as adopted on the panel of RGB display mode, if do not consider, colour-difference only considers brightness, and one pixel just can be used as pixel cell one time so, is the independent display unit that can only show a brightness.If consideration color distortion, such as divided be a red inferior pixel, and will there is colour cast in the constant words of the green component of the main pixel at this pixel place and blue component, so be necessary main pixel to do as a whole demonstration here, namely as a display unit entirety, show, its overall value can be thought the gray value that has RGB to convert, and characterizes its overall brightness.Also has the panel of RGBW display mode.Particularly, such as display unit P1, P2 etc., can be as the arbitrary unit region in the display unit 200 in Fig. 2, such as being specifically as follows certain pixel groups, main pixel or inferior pixel etc. (orientation of pixel can, for laterally, can be also longitudinal).For convenience of explanation, in the present invention, pixel is that example describes in proper order.

Meanwhile, for the show value of left-eye view, right-eye view and arbitrary display unit, can show arbitrarily for the pixel value of the image pixel of needs demonstration, brightness value, gray value etc. the parameter values of the difference in its display effect.For convenience of explanation, in the present invention, with show value, replace concrete parameter type, and be introduced in conjunction with RGB color space pattern.

For display unit P1 and P2 as shown in Fig. 4 (a) and Fig. 4 (b), all that a part is at left figure information area (corresponding to left-eye view), a part is at right figure information area (corresponding to right-eye view), also may by slit grating, be blocked in some region, as blocking that the black oblique line in Fig. 4 (b) causes the display unit of rectangle, and be not included in left figure information or right figure information simultaneously.And in practical situation, P1 in display unit or the pixel of P2 finally can only entirety be shown as a fixing pixel value, and as long as this pixel value and left-eye view or right-eye view are inconsistent, just certainly exist and crosstalk, thereby just there is minimum optimization problem, the final show value of P1 or P2 is that crosstalking of making in how many times that human eye finally sees is minimum.

Wherein, although the light-dividing device 100 in Fig. 2 is slit grating, technical scheme of the present invention is obviously also applicable to light-dividing device 100 and adopts the situation of lenticulation.Such as a kind of comparatively concrete execution mode, optical model corresponding to lenticulation can be of equal value or be reduced to the situation of slit grating model aperture opening ratio δ=100%, be that pixel P1, P2 do not exist the problem of being blocked by slit, its area ratio sum of being seen by right and left eyes is 100%.

And as another kind of comparatively concrete execution mode, left-eye view or the right-eye view display area/display area ratio on display unit can be thought weighted measurement result (be display unit P1, P2 etc., each location point is wherein that weighting exists to the contribution of crosstalking).Particularly, such as when on display unit P1/P2 a bit with the line of beholder's eyes near lenticulation on during the center of lens, can think that the weight that this point crosstalks is relatively little, and when line is during near the separation of two lens, now according to optics of lens characteristic, can think that the weight that this point crosstalks is relatively large.

One, model is set up

1, initial model

In technical scheme of the present invention, finally need to control the total amount (being above-mentioned interference value) that generation is crosstalked.Such as crosstalking that right-eye view causes left-eye view, i.e. " left eye crosstalk total amount "; And left-eye view crosstalking that right-eye view is caused, i.e. " right eye crosstalk total amount ".Meanwhile, can also add one " control module ", for the adjustment process of crosstalking is carried out to balance, this balanced action can be embodied in many aspects:

Such as on the one hand, for the amount of crosstalk gap that the result that prevents from finally obtaining is seen left eye and right eye excessive, asymmetric, can also add one " control module ", with can be for the balanced adjustment of crosstalking between total amount that left-eye view and right-eye view are finally obtained.

On the other hand, when the viewing location of the side (such as center with respect to display unit to the left or to the right) of beholder in display unit, the light sending due to each display unit exists certain angle poor while entering beholder's left eye and right eye through lenticulation or slit grating, and in the poor spectroscopic processes that acts on lenticulation or slit grating of this angle time, by causing beholder's left eye and amount of crosstalk that right eye receives, differently amplified (usually, such as when viewing location is to the left, left eye is more looked side ways, and crosstalking of receiving is just larger; Otherwise crosstalking that right eye receives is larger).And this control module can be according to the locus of beholder's left eye and right eye, thereby crosstalking of adjusting that said circumstances causes is unbalance.

Aspect another, the amount of crosstalk that control module can balance tracking error causes is unbalance.Such as when viewing location is to the left or to the right, tracking error can be than when viewing location mediates larger (usually, position deviation is larger, and error is also larger), and control module can be for adjusting this error.

Therefore, finally can obtain following computation model:

A=left eye total amount+right eye total amount+control module (1) of crosstalking of crosstalking

2, parameter-definition

For convenience of explanation, left-eye view and right-eye view all can be zoomed to the resolution sizes of display unit, in display unit, get arbitrarily a fixed unit of display, such as be inferior pixel.The show value (or claiming the value of information) of supposing left-eye view is L, the show value of right-eye view is R, the final actual displayed value of display unit is P, and the n power of measuring the absolute value that may be defined as its difference of crosstalking (n is arithmetic number) (certainly, what those skilled in the art should understand that is, for this mode of measuring of crosstalking, obviously there are a variety of modes, and be not used in restriction here; Such as the comparatively concrete execution mode of another kind, can also adopt the forms such as the absolute value of the difference of two squares.), and operation parameter α represents the amount of crosstalk controlling elements that display unit (display unit 200 as shown in Figure 2) and light-dividing device (light-dividing device 100 as shown in Figure 2) produce left eye, represent the amount of crosstalk controlling elements that display unit and light-dividing device produce right eye by parameter beta, to correspond respectively to left eye total amount and the right eye weight of total amount in final total amount of crosstalk A of crosstalking of crosstalking.And control module can directly adopt left eye total amount and right eye the poor of total amount of crosstalking of crosstalking.Based on above-mentioned definition, the calculating formula (1) of the above-mentioned total amount of crosstalking can be:

A=α|P-L| ⁿ+β|P-R| ⁿ+γ|α|P-L| ⁿ-β|P-R| ⁿ| ^m≥0 （2）

So, the present invention reaches remove or reduce the object of crosstalking, and requires the most rational P value, so that obtain the total amount A minimum of crosstalking that enters right and left eyes in calculating formula (2).

Wherein, γ is the weight factor of " control module ", for strengthening or weaken the intensity of control module; When γ=0, can think the adjusting factor of control module eliminated.| a kind of quantification manner of crosstalking and measuring that P-L| is left eye, why it being done to n(n is arithmetic number) computing of power is because in practical situation, the visual experience that human eye changes the show value of color is not necessarily linear; Correspondingly, m(m is arithmetic number) be adjustment amount corresponding to " control module ".Such as take RGB color space as example, human eye is that visual perception's difference between 20 and 10 and brightness value are that visual perception's difference between 20 and 15 is not the relation of 2 times just in time necessarily to brightness value, and this luminance difference (or crosstalk and measure difference) relation can be nonlinear.α and β are the control coefrficient of show value difference of crosstalking, its value is relevant with several factors, and the angle of inclination while placing as grating slope, the vision difference of the display unit of human eye to different brightness colors, the locus of this display unit, the parallax of this display unit displaying contents etc. are relevant.

Two, model solution

1, coefficient settings

The difference of corresponding display area ratio on display unit based on left-eye view and right-eye view, specifically such as on P1 and P2 in Fig. 4, S1 represents left-eye view corresponding display area ratio on corresponding display unit, and S2 represents right-eye view corresponding display area ratio on corresponding display unit.

Therefore, preferably, can be according to described display area ratio, determine the first amount of crosstalk that described right-eye view causes described left-eye view, the second amount of crosstalk that described left-eye view causes described right-eye view shared weight in total amount of crosstalk that described left-eye view and described right-eye view cause mutually respectively.Particularly, this weight can be understood as factor alpha, the β in above-mentioned calculating formula (2); Wherein, α is left eye weight corresponding to total amount of crosstalking, and β is right eye weight corresponding to total amount of crosstalking.

Preferably, described display area ratio and described weight can be proportionate.Owing to working as in the situation that display area ratio is larger, the impact of being crosstalked is more serious, thereby by display area ratio and weight are proportionate, can realize larger adjustment amount to the larger side of weight, make, when alleviating crosstalk phenomenon, the display effect of left-eye view and right-eye view to be carried out to balance.

As a kind of comparatively concrete execution mode, can be directly using above-mentioned display area ratio S1, S2 as corresponding weight value,

$\left\{\begin{array}{c}\mathrm{\&alpha;}=\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1\\ \mathrm{\&beta;}=S2\end{array}\right.$

Wherein, meet S1+S2≤1,0≤S1≤1,0≤S2≤1; And when δ=100%, S1+S2=1.

2, the tolerance of crosstalking

For convenience of description, the concrete tolerance of crosstalking (as | P-L| ⁿthe tolerance of being crosstalked for left-eye view) can adopt common absolute value, make n=1, the left eye total amount of crosstalking can be expressed as S1*|P-L|, and the right eye total amount of crosstalking can be expressed as S2*|P-R|.Meanwhile, when the weight factor γ of control module is certain definite numerical value (such as being constant), can be expressed as γ * | S1|P-L|-S2|P-R|| ², wherein using m=2 as concrete adjustment amount.Now, above-mentioned calculating formula (2) can be embodied as following formula:

A=S1|P-L|+S2|P-R|+γ|S1|P-L|-S2|P-R|| ²≥0 （3）

For this calculating formula (3), can be understood as according to the show value of the show value of described weight, described left-eye view and described right-eye view and generate the calculating formula of described total amount of crosstalk about the show value of described display unit, so that when described calculating formula is got the minimum of real number field, using the value of the show value of described display unit as described optimum show value.

In order to realize the calculating to this optimum show value, also need to carry out the calculating to display area ratio, so that the unknown number obtaining in calculating formula (3) is reduced to only surplus show value parameter P.

3, display area ratio

Display area ratio, S1, S2 as shown in Figure 4 has a lot of concrete modes that solve, and such as a kind of comparatively concrete account form, can adopt: according to the coordinate position Exact Solution area of the each point of the trapezoidal homalographic formula of triangle accurate Calculation.

(1) based on triangle, trapezoidal etc. area formula

Display area ratio has following relational expression:

$\left\{\begin{array}{c}\mathrm{\&alpha;}=\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1=\mathrm{\&alpha;}(\mathrm{\&theta;},\mathrm{\&delta;},\mathrm{pos},\mathrm{pitch},\mathrm{xoff})\\ \mathrm{\&beta;}=\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1=\mathrm{\&beta;}(\mathrm{\&theta;},\mathrm{\&delta;},\mathrm{pos},\mathrm{pitch},\mathrm{xoff})\end{array}\right.$

Wherein, shown in Fig. 2, θ is the tilted-putted inclination angle of display floater 200 and light-dividing device 100, δ is aperture opening ratio, pos is the locus of current display unit on display floater 200, pitch is the horizontal cycle that display floater 200 carries out row figure in the horizontal direction, and xoff is the horizontal displacement amount of display unit 200 and light-dividing device 100.In structure shown in Fig. 2, in conjunction with above-mentioned parameter, easily by triangle or trapezoidal geometric area method for solving, try to achieve S1 and S2.

Certainly, as comparatively preferred embodiment of one, may there is the 3D displayed scene based on tracing of human eye technology.Under this scene, based on beholder's change in location, all may there is change in its pitch and xoff parameter.

1) level changes

The schematic diagram of when Fig. 5 shows beholder according to an embodiment of the invention position and moves horizontally, row figure order being adjusted.

As shown in Figure 5, the initial position of supposing beholder is E1 point, and schematically, the pixel image that the Q1 in display unit 200 is ordered, provides 3D to show image via light-dividing device 100 to beholder.

When move beholder's position, such as moving to E2 point from E1 point, correspondingly, row figure information in display unit 200 need to be carried out to the length of mobile Q1 → Q2 along the direction contrary with E1 → E2, make to be originally positioned at the pixel image that Q1 orders and move to Q2 point, to guarantee that beholder can see correct 3D displaying contents.

2) vertical change

The schematic diagram of when Fig. 6 shows beholder according to an embodiment of the invention position and vertically moves, the row figure cycle being adjusted.

As shown in Figure 6, the initial position of supposing beholder is E1 point, and schematically, the row figure period p itch of the pixel image in display unit 200 is A1 → A2, and to beholder, provides 3D to show image via light-dividing device 100.

When move beholder's position, such as moving to E2 point from E1 point, correspondingly, row figure period p itch in display unit 200 need to be adjusted to the length of A3 → A4 from A1 → A2, make to be originally positioned at the pixel image that A1 orders and move to A3 point, to guarantee that beholder can see correct 3D displaying contents.

(2) Function Fitting

For the information of the locus pos of display unit, can utilize the mode of Function Fitting to be similar to obtain S1 and the S2 function about position coordinates pos.Known in conjunction with Fig. 2, because light-dividing device 100 is cycle existence, also the cycle exists the left and right figure information area of display unit 200, make its entirety have very strong periodicity, S1 and S2 also exist certain cycle to change about the Changing Pattern of position coordinates pos, therefore can obtain S1 and the S2 approximation to function about position coordinates pos according to the mode of this periodicity utility function matching.

By the mode of Function Fitting, in fact can obtain S1, the S2 variation function about position coordinates pos, thereby contribute to significantly to reduce the amount of calculation to S1, S2, and the numerical value of the S1 obtaining, S2 is smoother, has and well falls crosstalk effect.

(3) based on numerical integration

As the comparatively concrete execution mode of another kind, can also to the area of S1, S2, calculate according to numerical integration.Than carrying out the mode of accurate Calculation according to geometrical relationship described in (1), can significantly lower difficulty in computation little, and when integration step hour, can guarantee very high computational accuracy.

4, solve minimum total amount of crosstalk

Embodiment mono-: do not consider control module

When not considering control module, i.e. corresponding weight factor γ=0, is further changed to calculating formula (3):

A=S1*|P-L|+S2*|P-R|≥0 （4）

For convenience of explanation, below according to the size cases of L and R, divide situation discussion.

（1）L≤R

Due to when finally display unit being shown, its show value P must be between L and R, i.e. L≤P≤R is further reduced to calculating formula (4):

A=（S1-S2）*P-（S1*L-S2*R）≥0

When A gets minimum value, i.e. A=0, the in the situation that of S1-S2 ≠ 0:

$P=\frac{\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1*L-S2*R}{S1-S2}=\stackrel{\&OverBar;}{P}$

If now

now must there is S1-S2>0.Prove: as shown in Figure 7, if S1-S2<0, the function of the total amount of crosstalking A is about P monotone decreasing, therefore as P ∈ [L, R] time, A<0 as seen from Figure 7, A >=0 contradiction in this and calculating formula (4) in definition, so time can only be S1-S2>0.The function of the total amount of crosstalking A is about P monotone increasing, therefore when by calculating

while being less than L, desirable P=L makes A minimum under rational situation.

Similarly, if

certainly exist S1-S2<0, known according to monotonicity rule, during P=R, will make A minimum under rational situation.Therefore, in summary:

Or can be abbreviated as:

$P=\max \{L,\min (R,\stackrel{\&OverBar;}{P})\}$

（2）L＞R

Be similar to situation and analytic process in (1), known:

Or can be abbreviated as:

$P=\max \{R,\min (L,\stackrel{\&OverBar;}{P})\}$

Certainly, comprehensive situation (1) and (2), can merge the above results, makes:

Or can be abbreviated as:

$P=\max \{A,\min (B,\stackrel{\&OverBar;}{P})\}$

Wherein, A is left eye total amount L and the right eye less side of numerical value in total amount R that crosstalks that crosstalks, and B is the opposing party that numerical value is larger.

Simultaneously, work as S1-S2=0, be that left-eye view and the right-eye view display area on display unit (can be time pixel) is in equal proportions, the amount of crosstalk of seeing for balance right and left eyes, now can simply get P=0.5*(L+R), or guarantee in other way the permanent establishment in S1-S2 ≠ 0 in calculating process.

Embodiment bis-: consider control module

Preferably, can, according to the difference of described the first amount of crosstalk and described the second amount of crosstalk, the calculating formula of described total amount of crosstalk be adjusted, with the first amount of crosstalk described in balance and described the second amount of crosstalk; And according to the total amount of crosstalk after adjusting, calculate described optimum show value.

Wherein, control module can be the difference corresponding to the first amount of crosstalk and the second amount of crosstalk, by add the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk in the calculating formula of described total amount of crosstalk, and by controlling the weight of described balance control parameter, can adjust the size that this control module plays a role in total amount of crosstalk.

And by adding balance control parameter, included the consideration of the difference to the first amount of crosstalk and the second amount of crosstalk in, thereby contribute to amount of crosstalk corresponding to balance left-eye view and right-eye view, make the mutual coordination between left-eye view and right-eye view, thereby promote viewing experience.

Particularly, when considering control module, corresponding weight factor γ ≠ 0, makes directly by calculating formula (3), to calculate.

For convenience of explanation, still according to the size cases of L and R, divide situation discussion below.

（1）L≤R

Due to when finally display unit being shown, its show value P must be between L and R, i.e. L≤P≤R is further reduced to calculating formula (3):

A=S1(P-L)+S2(R-P)+γ(S1(P-L)-S2(R-P)) ² （5）

Or can expand into:

A=γ(S1+S2) ²P ²+[(S1-S2)-2γ(S1+S2)(S1L+S2R)]P+(S2R-S1L)+γ(S1L+S2R) ² （6）

According to actual physics definition, the weight factor that γ is control module, therefore there is γ > 0; When grating actual blocked the width that length is less than a display unit, there is S1+S2 > 0, therefore A is the quadratic polynomial about P in calculating formula (6), and opening upwards.According to Veda theorem, corresponding to the minimum of A, the value of P is:

$P=-\frac{(S1-S2)-2\mathrm{\&gamma;}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+S2)(S1L+S2R)}{2\mathrm{\&gamma;}{(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+S2)}^2}=\stackrel{\&OverBar;}{\stackrel{\&OverBar;}{P}}$

Meanwhile, consider L≤P≤R, for

drop under the situation outside interval [L, R], known in conjunction with above-mentioned value:

Or can be abbreviated as:

$P=\max \{L,\min (R,\stackrel{\&OverBar;}{\stackrel{\&OverBar;}{P}})\}$

（2）L＞R

Be similar to situation and analytic process in (1), now L > P > R, calculating formula (3) can further be reduced to:

A=γ(S1+S2) ²P ²+[(S1-S2)-2γ(S1+S2)(S1L+S2R)]P+(S1L-S2R)+γ(S1L+S2R) ² （7）

According to actual physics definition, the weight factor that γ is control module, therefore there is γ > 0; When grating actual blocked the width that length is less than a display unit, there is S1+S2 > 0, therefore A is the quadratic polynomial about P in calculating formula (7), and opening upwards.According to Veda theorem, corresponding to the minimum of A, the value of P is:

$P=-\frac{(S1-S2)-2\mathrm{\&gamma;}(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+S2)(S1L+S2R)}{2\mathrm{\&gamma;}{(\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+S2)}^2}=\stackrel{\&OverBar;}{\stackrel{\&OverBar;}{P}}$

Meanwhile, consider R≤P≤L, for

drop under the situation outside interval [R, L], known in conjunction with above-mentioned value:

Or can be abbreviated as:

$P=\max \{R,\min (L,\stackrel{\&OverBar;}{\stackrel{\&OverBar;}{P}})\}$

Certainly, comprehensive situation (1) and (2), can merge the above results, makes:

Or can be abbreviated as:

$P=\max \{A,\min (B,\stackrel{\&OverBar;}{P})\}$

Wherein, A is left eye total amount L and the right eye less side of numerical value in total amount R that crosstalks that crosstalks, and B is the opposing party that numerical value is larger.

Corresponding to above-mentioned stereo display method, the invention allows for the organization plan of corresponding functional module, particularly, Fig. 8 shows the schematic block diagram of 3 d display device according to an embodiment of the invention.

As shown in Figure 8,3 d display device 800 according to an embodiment of the invention, comprising: acquiring unit 802, at least one pair of have parallax image display unit light-dividing device cover under interference value; Adjustment unit 804, for according to described interference value, described display unit being adjusted, with the described display unit after described adjustment, the described a pair of image with parallax is shown left-eye view and right-eye view display area ratio corresponding to difference on same display unit of obtaining stereo-picture; Computing unit 804, for according to described display area ratio, calculates actual displayed in the optimum show value of the pixel image of described same display unit; Display unit 806, for showing described pixel image according to described optimum show value.

In this technical scheme, interference value comprises having the total amount of crosstalking that a pair of image of parallax produces mutually.By display unit being adjusted based on interference value, make it possible to, by the display unit after adjusting, reduce the numerical value of interference value, reduce the total amount of crosstalking that the corresponding a pair of image with parallax produces mutually, thereby optimize stereo display effect.

In addition, 3 d display device 800 according to the above embodiment of the present invention, can also have following additional technical characterictic:

According to one embodiment of present invention, preferably, described acquiring unit 802 comprises: ratio acquisition module 8022, for obtaining the described a pair of image display area ratio of correspondence on described display unit respectively with parallax; Difference acquisition module 8024, for the show value that obtains described display unit respectively with the difference of the show value of the described a pair of image with parallax; Interference value determination module 8026, for according to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

In this technical scheme, because display area ratio is associated with affected degree, such as display area ratio is when larger, the impact being subject to may be larger.Thereby by obtaining display area ratio, just can determine corresponding influence degree, thereby based on this influence degree, the optimum show value of the pixel image while being adjusted at actual demonstration on display unit, can reduce the interference volume to left-eye view and right-eye view, to alleviate the generation of crosstalk phenomenon.

And by obtain display area ratio corresponding to left-eye view and right-eye view simultaneously, make it possible to the impact of simultaneously recognizing that left-eye view and right-eye view are subject to, and while adjusting optimum show value based on this impact, can take into account the situation of left-eye view and right-eye view simultaneously, avoid inconsistent and cause the viewing effect of images of left and right eyes inharmonious to the adjustment amount of left-eye view and right-eye view.

Simultaneously, because display unit is finally merely able to be shown as certain fixing numerical value, thereby determine interference value with the difference of the show value of left-eye view, right-eye view respectively according to the show value of display unit, the impact that the actual displayed value that can take into account display unit causes respectively left-eye view and right-eye view, thus make final display effect balanced and reasonable more.

According to one embodiment of present invention, preferably, described ratio acquisition module 8022 comprises: submodule 8022A is determined in region, for according to the structure attribute of described 3 d display device 800 and/or beholder's positional information, determine the described a pair of image viewing area corresponding to difference on described display unit with parallax; Ratio calculating sub module 8022B distinguishes corresponding viewing area in the shared ratio in whole viewing areas of described display unit for calculating respectively the described a pair of image with parallax on described display unit.

In this technical scheme, 3 d display device 800 is after production completes, and its structure attribute just can be determined and be fixed up, thereby can, according to the practical structures characteristic of 3 d display device 800, determine display area ratio.Simultaneously, when adopting the Display Technique of people's ocular pursuit, for the difference of beholder present position information, also can cause left-eye image and eye image corresponding viewing area in display unit to change, thereby also can obtain this positional information, to realize the amount of crosstalk reducing under tracing of human eye displayed scene.

Wherein, for not considering in the situation of people's ocular pursuit, obviously can only according to the structure attribute of 3 d display device 800, calculate viewing area and corresponding display area ratio; And for determining in the situation of parameters of structure attribute, the positional information in the time of obviously also can be only according to people's ocular pursuit, determines corresponding viewing area and display area ratio; And by simultaneously to the obtaining of structure attribute and positional information, can take into account the application of hardware case and human eye tracer technique, thereby realize the optimization process effect reducing crosstalking.

Preferably, described structure attribute comprise following at least one or a combination set of: the parallax of displaying contents and the size of described display unit in the inclination angle between display floater and described light-dividing device in described 3 d display device 800, the aperture opening ratio of described light-dividing device, described display unit positional information, the described display unit on described light-dividing device.

In this technical scheme, if not adopting, light-dividing device and display floater tilt to install, inclination angle can be 0 ° and without consideration, but for adopting inclination mode install and exist in the situation of error, can consider the existence at inclination angle.Meanwhile, if adopt lenticulation, can think that it is equivalent to aperture opening ratio is 100% slit grating.

Certainly, those skilled in the art should understand that: can select any one or more in said structure attribute according to actual conditions, also can use other NM structure attributes; When selecting the structure attribute of more type, contribute to obtain computation structure more accurately, and when selecting the structure attribute of less type, contribute to reduce amount of calculation.

According to one embodiment of present invention, preferably, described adjustment unit 804 comprises: weight determination module 8042, be used at the described a pair of image with parallax, determine the first amount of crosstalk that right-eye view causes left-eye view shared the first weight in described left-eye view, and described left-eye view the second amount of crosstalk that described right-eye view is caused shared second weight in described right-eye view; Calculating formula generation module 8044, for generating the calculating formula of described interference value about the show value of described display unit according to described the first weight, described the second weight, the show value of described left-eye view and the show value of described right-eye view; Numerical value determination module 8046, when the optimum show value of the calculating formula entirety minimum at described interference value and described display unit is between the show value of described left-eye view and the show value of described right-eye view, obtain the optimum show value of described display unit.

In this technical scheme, when generating the calculating formula of interference value, by weighted value is set, in fact embodied the size of the impact that left-eye view and right-eye view be subject to, thereby while calculating optimum show value accordingly, can reflect the adjustment of the amount of crosstalk that left-eye view and right-eye view are subject to, alleviate crosstalk phenomenon.

Preferably, the display area ratio that described left-eye view is corresponding and described the first weight are proportionate, and display area ratio and the second weight that right-eye view is corresponding are proportionate.In this technical scheme, when in the larger situation of display area ratio, the impact of being crosstalked is more serious, thereby by display area ratio and weight are proportionate, can realize larger adjustment amount to the larger side of weight, make, when alleviating crosstalk phenomenon, the display effect of left-eye view and right-eye view to be carried out to balance.

As a kind of comparatively concrete execution mode, described weight determination module 8042 is display area ratio corresponding described left-eye view, as described the first weight, and by display area ratio corresponding described right-eye view, as described the second weight.

In this technical scheme, can be simply using display area ratio as corresponding weight; Or, it will be understood by those skilled in the art that by adopting other parameters that is positively correlated with display area ratio, obviously also can realize equally the adjustment of crosstalking to left-eye view and right-eye view.

According to one embodiment of present invention, preferably, also comprise: balancing unit 806, for according to the difference of described the first amount of crosstalk and described the second amount of crosstalk, calculating formula to described interference value is adjusted, with the first amount of crosstalk described in balance and described the second amount of crosstalk; Wherein, described numerical value determination module 8046, according to the calculating formula of the interference value after adjusting, obtains the optimum show value of described display unit.

In this technical scheme, not only consider that interference value is as far as possible little, simultaneously also by the adjustment of the calculating formula to interference value, include the difference of the first amount of crosstalk and the second amount of crosstalk in consideration, make using optimum show value after adjusting while showing, the mutual balance of amount of crosstalk corresponding to left-eye view and right-eye view, more reasonable, contributes to the mutual coordination between left-eye view and right-eye view, thereby promotes viewing experience.

Preferably, described balancing unit 806 comprises: parameter is added module 8062, for the calculating formula at described interference value, adds the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk.

In this technical scheme, by adding balance control parameter, included the consideration of the difference to the first amount of crosstalk and the second amount of crosstalk in, thereby contributed to balance left-eye view and amount of crosstalk corresponding to right-eye view, make the mutual coordination between left-eye view and right-eye view, thereby promote viewing experience.

Below in conjunction with the accompanying drawings and embodiments, understand specifically in technical scheme of the present invention, can be according to left-eye view and the right-eye view display area ratio of correspondence on display unit respectively, left eye the crosstalk weight of total amount of total amount and right eye of crosstalking is controlled, thereby carried out reducing total amount of crosstalk.Certainly, it will be understood by those skilled in the art that and obviously also can realize by other means left eye the crosstalk weight control of total amount of total amount and right eye of crosstalking.Wherein, as a kind of comparatively concrete execution mode, below take " human visual experience " as example, illustrate according to which and realize the technical scheme that weight is controlled.

1, visual experience rule

In this embodiment, still can adopt calculating formula (1) as computation model,

A=left eye total amount+right eye total amount+control module (1) of crosstalking of crosstalking

In the present embodiment, for convenience of explanation, can temporarily save control module, calculating formula (1) can be reduced to:

A=left eye total amount+right eye total amount (8) of crosstalking of crosstalking

The show value (or claiming the value of information) of supposing left-eye view is L, and the show value of right-eye view is R, and the final actual displayed value of display unit is P, and calculating formula (8) can be embodied as:

A=α|P-L| ⁿ+β|P-R| ⁿ≥0 （9）

Wherein, parameter alpha represents the amount of crosstalk controlling elements that display unit (display unit 200 as shown in Figure 2) and light-dividing device (light-dividing device 100 as shown in Figure 2) produce left eye, represent the amount of crosstalk controlling elements that display unit and light-dividing device produce right eye by parameter beta, to correspond respectively to left eye total amount and the right eye weight of total amount in final total amount of crosstalk A of crosstalking of crosstalking.

For convenience of explanation, below take L≤R as example, human eye is experienced to rule and be introduced.

(1) brightly crosstalk and secretly crosstalk

When L and R get respectively different show values, for human eye impression, L is that left-eye view is to right-eye view to R() cross talk effects that produces, to L(, be that right-eye view is to left-eye view with R) cross talk effects that produces, both are not identical.

Suppose for display unit P1(as shown in Figure 2), if its show value P=L will can not exist and crosstalk for left-eye view; But it is P >=L in fact, make for left-eye view, actual displayed value is higher than desirable show value, can be referred to as " bright crosstalking ".

Relatively, if the show value P=R of display unit P1 will can not exist and crosstalk for right-eye view; But it is P≤R in fact, make for right-eye view, actual displayed value is lower than desirable show value, can be referred to as " secretly crosstalking ".

And the in the situation that of equal extent, i.e. P-L=R-P, brightly crosstalks and secretly crosstalk and have very large difference to people's direct feel, human eye wants responsive many relatively to bright crosstalking.Such as for brightness, while showing a white picture on display, the brightness of certain pixel wherein higher than other during brightness a little, than the brightness of this pixel lower than other brightness a little, obviously human eye is more responsive for the former.

Particularly, such as take rgb color space as example, suppose and on screen, demonstrate RGB=(200,200,200) pure color figure, when to have 1 value corresponding to A in this figure be RGB _(A)=(150,150,150), or 1 value corresponding to B of existence is RGB _(B)during=(250,250,250), if some A and some B in equal obvious position, human eye is more easily found brighter point (putting B), human eye for bright crosstalk more responsive.

Therefore, under the situation of L < R, for left-eye view, belong to bright crosstalking, should adopt the numerical value that relative β is larger to weight factor α corresponding to left-eye view, using " punishment " its as the bright fact more responsive to human eye of crosstalking; And belong to for right-eye view, secretly crosstalk, should adopt the numerical value that relative α is less to weight factor β corresponding to right-eye view, using " award " its as the fact of secretly crosstalking to human eye relative insensitivity.

If note Tol1 be left eye to bright tolerance coefficient of crosstalking or secretly crosstalk, Tol2 be right eye to bright tolerance coefficient of crosstalking or secretly crosstalk,, corresponding to the value rule of α and β, the value of Tol1 should be relatively large, the value of Tol2 should be relatively little.

(2) impression when show value difference is identical changes

Suppose in the embodiment shown in fig. 4, display area ratio S1 and S2 equate, and the brightness value of left and right view of further supposing P1 place is (take brightness value as example, obviously also can be for other show values) be respectively L1=0 and R1=20, the brightness value of the left and right view at P2 place is respectively L2=200 and R2=220, known (particularly, such as calculating according to the display area ratio of S1 and S2 according to above-mentioned display area ratio; Now due to S1=S2, thereby can be the brightness average of left and right view): the brightness at P1 place is p1=10, and the brightness at P2 place is p2=210.

And experience according to reality, crosstalking that now left eye is experienced crosstalked for bright, and the degree of crosstalk at P1 place will obviously be greater than the degree of crosstalk at P2 place, therefore left eye tolerance coefficient T ol1 should be greater than the value at P2 place in the value at P1 place, for the lightness environment of punishment P1.

In fact, the final display brightness value P1 in P1 place is infinite times of brightness value L 1 of its left-eye view, and the brightness value L 2 of the final display brightness value P2 in P2 place and left-eye view is suitable, without obvious luminance difference, make that obvious P1 produces bright crosstalk than P2 place bright, crosstalk more responsive.The rule of this direct feel to left eye can be summed up as follows:

In the situation that left and right figure luminance difference R-L is certain, there is monotonic relationshi in the bright crosstalk strength that left eye is experienced and the size of the numerical value of left and right figure within the scope of whole brightness number.For convenience of explanation, can will should " size of numerical value within the scope of whole brightness number " simply be taken as the average brightness value 0.5*(L+R of left and right figure), now the value of Tol1 about the mean flow rate 0.5*(L+R of left and right figure) monotone decreasing.

Similarly, according to reality, experience crosstalking as secretly crosstalking that right eye is subject to, and the degree of crosstalk of P1 will be less than the degree of crosstalk of P2 relatively, therefore right eye tolerance coefficient T ol2 should be less than value at P2 place for rewarding the lightness environment of P1 in the value at P1 place, now the value of Tol2 about the mean flow rate 0.5*(L+R of left and right figure) monotone increasing.

(3) impression when show value sum is identical changes

As another rule, in the brightness of left and right figure with (L+R) be under the situation of definite value, still as an example of the situation of S1=S2 example, describe.Corresponding to above-mentioned P1 place and P2 place, suppose that the concrete brightness value at P1 place is L1=40 and R1=60, the concrete brightness value of supposing P2 place is L2=10 and R2=90.Due to L1+R1=L2+R2, according to area ratio simple solution, having the actual displayed brightness at P1 place and P2 place is P1=P2=50.

According to reality impression, left eye is still bright crosstalking, and its degree of crosstalk at P1 place is less than the degree of crosstalk at P2 place; And right eye is for secretly crosstalking, its degree of crosstalk at P1 place is greater than crosstalking of P2 place, therefore have the value of Tol1 about the luminance difference R-L monotone increasing of left and right figure, the value of Tol2 is about the luminance difference R-L monotone decreasing of left and right figure.

2, to the quantification of Tol1, Tol2 for example

According to the rule of description experience above to(for) human eye, Tol1 and Tol2 are under the situation of L≤R, can be according to human eye to the bright impression of crosstalking and secretly crosstalking, under the situation of different lightness environment according to the dynamic value of its monotonicity, the mode of its concrete realization can be exemplified below (it will be understood by those skilled in the art that and obviously have multiple implementation, such as square, or other functional form, all can show its monotonicity):

$\left\{\begin{array}{c}\mathrm{Toll}=\mathrm{atol}+\mathrm{btol}*\frac{R-L}{L+R+\mathrm{\&epsiv;}}\\ \mathrm{Tol}2=\mathrm{atol}-\mathrm{btol}*\frac{R-L}{L+R+\mathrm{\&epsiv;}}\end{array}\right.$

Wherein, atol > 0, btol > 0 is adjustment factor, ε is for just indivisible, for preventing that denominator from being 0.Because Tol1 and Tol2 are the tolerance ratio values of crosstalking (being relative quantity) of right and left eyes, and right and left eyes restricts mutually, thus can limit Tol1+Tol2=1, Tol1 >=0, Tol2 >=0, above formula can specific implementation be written as:

$\left\{\begin{array}{c}\mathrm{Toll}=0.5+0.5*\frac{R-L}{L+R+\mathrm{\&epsiv;}}\\ \mathrm{Tol}2=0.5-0.5*\frac{R-L}{L+R+\mathrm{\&epsiv;}}\end{array}\right.$

3, the crosstalk combination of tolerance coefficient and display area ratio

Consider the incidence relation between tolerance coefficient and display area ratio, can be in conjunction with personnel's visual experience Tol1, Tol2, and display area ratio S1, the S2 of left-eye view as shown in Figure 4 and right-eye view correspondence on display unit, jointly for solving factor alpha and β.

The concrete mode that solves has a lot, such as both are simply added or are multiplied each other.In the mode that multiplies each other as example, can obtain:

$\left\{\begin{array}{c}\mathrm{\&alpha;}=\mathrm{<figure-callout\; id="1"\; label="Tol"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">Tol</figure-callout>}1*\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1\\ \mathrm{\&beta;}=\mathrm{Tol}2*S2\end{array}\right.$

α and β are normalized to computing, and its result is as follows:

$\left\{\begin{array}{c}\mathrm{\&alpha;}=\mathrm{\&alpha;}(\mathrm{<figure-callout\; id="1"\; label="Tol"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">Tol</figure-callout>}1,S1)=\frac{\mathrm{<figure-callout\; id="1"\; label="Tol"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">Tol</figure-callout>}1*\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1}{\mathrm{<figure-callout\; id="1"\; label="Tol"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">Tol</figure-callout>}1*\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+\mathrm{Tol}2*S2+\mathrm{\&epsiv;}}\\ \mathrm{\&beta;}=\mathrm{\&beta;}(\mathrm{Tol}2,S2)=\frac{\mathrm{Tol}2*S2}{\mathrm{<figure-callout\; id="1"\; label="Tol"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">Tol</figure-callout>}1*\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000454709070000031.png"\; state="\{\{state\}\}">S</figure-callout>}1+\mathrm{Tol}2*S2+\mathrm{\&epsiv;}}\end{array}\right.$

4, solve optimum show value

（1）n=1

Now, calculating formula (9) can be embodied as:

A=α|P-L|+β|P-R|≥0 （10）

Be similar to the embodiment while only calculating with area ratio, when A gets minimum value, i.e. A=0, and alpha-beta ≠ 0 o'clock, known:

$P=\frac{\mathrm{\&alpha;L}-\mathrm{\&beta;R}}{\mathrm{\&alpha;}-\mathrm{\&beta;}}=\tilde{P}$

When L≤R, its conclusion is:

$P=\max \{L,\min [R,\tilde{P}\left]\right\}$

When L > R, its conclusion is:

$P=\max \{R,\min [L,\tilde{P}\left]\right\}$

When alpha-beta=0, crosstalk total amount and right eye of left eye crosstalked the weighted value of total amount when identical, can simply get P=0.5*(L+R), or guarantee in other way to make alpha-beta can be infinitely close to 0 but can not equal 0 in calculating process.

（2）n≠1

Now, n > 0, an and arithmetic number of n ≠ 1, in calculating formula (9), the value of A is the smooth curvilinear function about P, and according to the rational physical significance of reality, A(P) in real number field (P > 0), there is minimum, and extreme value unique (remaining extreme value is plural number, without actual physics meaning).A point situation discussion below solves.

1）L≤R

According to actual physics meaning, P ∈ [L, R], calculating formula (9) can be rewritten as:

A=α（P-L） ⁿ+β（R-P） ⁿ≥0 （11）

A, about P differentiate, and is asked to zero point of its derived function, can obtain:

$\frac{\mathrm{dA}}{\mathrm{dP}}=\mathrm{\&alpha;n}{(P-L)}^{n-1}-\mathrm{\&beta;n}{(R-P)}^{n-1}=0$

In real number field, the solution of calculating formula (11) is unique, and its solution of being not difficult to calculate by above formula is

Due to alpha+beta=1, thereby apparently:

2）L＞R

Derivation and situation 1) similar, the now value result and 1 of optimum P) in the expression formula (12) that obtains consistent, and value between R and L.

In sum, finally the actual value P of this pixel can directly be calculated by (12), and one fixes between L and the value of R.Wherein, when being specifically related to extracting operation, all get it and exist the value of physical significance, such as for α ^n-1, when n=1.5, the extracting operation of α is got arithmetic number solution.

According to above-mentioned record, while getting different numerical value for n, all can calculate corresponding show value P, such as:

When n=2, $P=\frac{\mathrm{\&alpha;}*L+\mathrm{\&beta;}+R}{\mathrm{\&alpha;}+\mathrm{\&beta;}}=\mathrm{\&alpha;}*L+\mathrm{\&beta;}*R;$

When n=3, $P=\frac{{\mathrm{\&alpha;}}^2*L+{\mathrm{\&beta;}}^2*R}{{\mathrm{\&alpha;}}^2+{\mathrm{\&beta;}}^2};$

When n=4, $P=\frac{{\mathrm{\&alpha;}}^3*L+{\mathrm{\&beta;}}^3*R}{{\mathrm{\&alpha;}}^3+{\mathrm{\&beta;}}^3};$

When n=0.5, $P=\frac{{\mathrm{\&alpha;}}^{-0.5}*L+{\mathrm{\&beta;}}^{-0.5}*R}{{\mathrm{\&alpha;}}^{-0.5}+{\mathrm{\&beta;}}^{-0.5}};$

When n=1.5, $P=\frac{\sqrt{\mathrm{\&alpha;}}*L+\sqrt{\mathrm{\&beta;}}*R}{\sqrt{\mathrm{\&alpha;}}+\sqrt{\mathrm{\&beta;}}};$

When n=2.3, $P=\frac{{\mathrm{\&alpha;}}^{.1.3}*L+{\mathrm{\&beta;}}^{.1.3}*R}{{\mathrm{\&alpha;}}^{.1.3}+{\mathrm{\&beta;}}^{.1.3}}$ Deng.

In different 3D design of LEDs, can pass through the concrete selection to n, thereby determine the n that makes display effect optimum, using the application parameter as final.

More than be described with reference to the accompanying drawings technical scheme of the present invention, consider in correlation technique, cross-interference issue has a strong impact on observer's viewing effect, therefore, the present invention proposes a kind of stereo display method and a kind of 3 d display device, can effectively alleviate the crosstalk phenomenon in stereo display process, optimize stereo display effect.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (14)

1. a stereo display method, is characterized in that, comprising:

The interference value of the display unit that obtains at least one pair of image with parallax under light-dividing device covers;

According to described interference value, described display unit is adjusted;

By the described display unit after described adjustment, the described a pair of image with parallax is shown.

2. stereo display method according to claim 1, is characterized in that, obtains described interference value and specifically comprises:

According to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

3. stereo display method according to claim 2, is characterized in that, obtains described display area ratio and specifically comprises:

According to the structure attribute of 3 d display device under described display unit and/or beholder's positional information, determine the described a pair of image viewing area corresponding to difference on described display unit with parallax; And

Calculate described a pair of image viewing area shared ratio in whole viewing areas of described display unit corresponding to difference on described display unit with parallax.

4. stereo display method according to claim 3, is characterized in that, described structure attribute comprise following at least one or a combination set of:

The parallax of displaying contents and the size of described display unit in inclination angle between display floater in described 3 d display device and described light-dividing device, the aperture opening ratio of described light-dividing device, described display unit positional information, the described display unit on described light-dividing device.

5. according to the stereo display method described in any one in claim 1 to 4, it is characterized in that, the described process of described display unit being adjusted according to described interference value comprises:

In the described a pair of image with parallax, determine the first amount of crosstalk that right-eye view causes left-eye view shared the first weight in described left-eye view, and described left-eye view the second amount of crosstalk that described right-eye view is caused shared second weight in described right-eye view;

According to described the first weight, described the second weight, the show value of described left-eye view and the show value of described right-eye view, generate the calculating formula of described interference value about the show value of described display unit;

When the calculating formula entirety minimum of described interference value and the optimum show value of described display unit are between the show value of described left-eye view and the show value of described right-eye view, obtain the optimum show value of described display unit.

6. stereo display method according to claim 5, is characterized in that, also comprises:

According to the difference of described the first amount of crosstalk and described the second amount of crosstalk, the calculating formula of described interference value is adjusted, with the first amount of crosstalk described in balance and described the second amount of crosstalk;

According to the calculating formula of the interference value after adjusting, obtain the optimum show value of described display unit.

7. stereo display method according to claim 6, is characterized in that, what described interference value was adjusted comprises:

In the calculating formula of described interference value, add the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk.

8. a 3 d display device, is characterized in that, comprising:

Acquiring unit, at least one pair of have parallax image display unit light-dividing device cover under interference value;

Adjustment unit, for according to described interference value, described display unit being adjusted, shows the described a pair of image with parallax with the described display unit by after described adjustment.

9. 3 d display device according to claim 8, is characterized in that, described acquiring unit comprises:

Ratio acquisition module, for obtaining the described a pair of image display area ratio of correspondence on described display unit respectively with parallax;

Difference acquisition module, for the show value that obtains described display unit respectively with the difference of the show value of the described a pair of image with parallax;

Interference value determination module, for according to the described a pair of image with parallax respectively on described display unit the show value of corresponding display area ratio, described display unit respectively with the difference of the show value of the described a pair of image with parallax, determine described interference value.

10. 3 d display device according to claim 9, is characterized in that, described ratio acquisition module comprises:

Submodule is determined in region, for according to the structure attribute of described 3 d display device and/or beholder's positional information, determines the described a pair of image viewing area corresponding to difference on described display unit with parallax;

Ratio calculating sub module is distinguished corresponding viewing area in the shared ratio in whole viewing areas of described display unit for calculating the described a pair of image with parallax on described display unit.

11. 3 d display devices according to claim 10, is characterized in that, described structure attribute comprise following at least one or a combination set of:

The parallax of displaying contents and the size of described display unit in inclination angle between display floater in described 3 d display device and described light-dividing device, the aperture opening ratio of described light-dividing device, described display unit positional information, the described display unit on described light-dividing device.

3 d display device in 12. according to Claim 8 to 11 described in any one, is characterized in that, described adjustment unit comprises:

Weight determination module, be used at the described a pair of image with parallax, determine the first amount of crosstalk that right-eye view causes left-eye view shared the first weight in described left-eye view, and described left-eye view the second amount of crosstalk that described right-eye view is caused shared second weight in described right-eye view;

Calculating formula generation module, for generating the calculating formula of described interference value about the show value of described display unit according to described the first weight, described the second weight, the show value of described left-eye view and the show value of described right-eye view;

Numerical value determination module, when the optimum show value of the calculating formula entirety minimum at described interference value and described display unit is between the show value of described left-eye view and the show value of described right-eye view, obtains the optimum show value of described display unit.

13. 3 d display devices according to claim 12, is characterized in that, also comprise:

Balancing unit, for according to the difference of described the first amount of crosstalk and described the second amount of crosstalk, adjusts the calculating formula of described interference value, with the first amount of crosstalk described in balance and described the second amount of crosstalk;

Wherein, described numerical value determination module, according to the calculating formula of the interference value after adjusting, obtains the optimum show value of described display unit.

14. 3 d display devices according to claim 13, is characterized in that, described balancing unit comprises:

Parameter is added module, for the calculating formula at described interference value, adds the balance control parameter corresponding to the difference of described the first amount of crosstalk and described the second amount of crosstalk.

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